Question

1: What is meant by destination-based forwarding? How does this differ from generalized forwarding?

2: What is the role of the forwarding table within a router?

3: Define the following terms in the context of SNMP: managed device, MIB, managing server, and network management agent.

Answer 1

1: What is meant by destination-based forwarding?

Destination Based forwarding:

• Destination Based Forwarding is a type of routing method. In this method, the router forwards the datagrams based on destination IP which is mentioned in that message.
• In this method, each datagram contains the destination address and processes based on that IP.
• In this method, we don't consider the source, we just care about the destination.

How does this differ from generalized forwarding?

In generalized forwarding, the router forwards the datagrams by considering other factor header field values.

2: What is the role of the forwarding table within a router?

• In computer networking Forwarding, the table defines how the frame will be forwarded. It is also called as a flow table.
• The forwarding table first performs the matching of header fields, such as destination IP, if they match then forward the frame to the destination address.

3: Define the following terms in the context of SNMP: managed device, MIB, managing server, and network management agent.

SNMP: Simple Network Management Protocol (SNMP) is a part ofTCP⁄IP protocol. It is an application–layer protocol designed for exchanging data between devices over a network.

• In SNMP protocol, A managed device is nothing but a physical device. Example: routers, switches, servers.
• SNMP agent maintains parameters which are describing devices. The SNMP manager requests the agent for the information and then translates as needed. This shared information between the SNMP Agent and the Manager is called Management Information Base (MIB).
• The network management agent is a network element that is used to collect the management information from the device makes it available to the SNMP manager.